R5K574N6C4FC#10

The R5K574N6C4FC#10 is an RX74N microcontroller ordering code from Renesas in an LFQFP-176 package, configured with 512 KB of memory and a 480 MHz operating frequency. It brings the Ethernet-oriented RX74N family down into a quad flat package, which many production lines prefer over ball-grid arrays: the leads are visible for solder-joint inspection, rework is straightforward, and assembly does not need X-ray verification. For industrial controllers, communication modules and equipment control boards that need serious processing with Ethernet-class connectivity but are built in moderate volumes, that packaging practicality is often the deciding factor rather than raw pin count. The 512 KB memory size suits focused firmware images such as protocol handling, control logic and user interfaces without paying for capacity the product never uses. Selection advice: choose this code when the RX74N feature set is right but a QFP footprint fits your assembly and inspection process better than the family's LFBGA-320 codes, and when 512 KB is sufficient; larger RX74N configurations in BGA offer 1 MB when the firmware demands it. Take care with the suffix when ordering: Renesas lists related codes with different suffixes, and the #60 variants on the family page are marked NRND, so specify this #10 code exactly rather than accepting a near match. Parameters verified against Renesas Electronics documentation.